jME-TrueTypeFont Rendering Library

Ali_RS · August 27, 2019, 4:19am

Hi @Tryder
Curious to know if jme-ttf supports right to left text wrapping?

yan · August 27, 2019, 9:28am

Hi, @Tryder
I have one more question with TrueTypeBMP.

I notice that there are some differences between TrueTypeAWT and TrueTypeSfntly.
In TrueTypeAWT the atlas texture was disposed whenever atlas was resized.

https://github.com/ATryder/jME-TTF/blob/master/src/com/atr/jme/font/TrueTypeAWT.java#L202

but in TrueTypeSfntly it was not.

https://github.com/ATryder/jME-TTF/blob/master/src/com/atr/jme/font/TrueTypeSfntly.java#L275

If I don’t lock the atlas neither preload any text, this could happen.

First I use TrueTypeAWT to make a short String, then I use it to make a long enough String. This operation will force TrueTypeAWT to resize atlas, which mean the old atlas (already in use) will be killed.

This is my test case.

github.com

jmecn/jME-TTF/blob/dev/src/test/java/com/atr/jme/font/example/TestAtlasResize.java

package com.atr.jme.font.example;

import com.atr.jme.font.TrueTypeBMP;
import com.atr.jme.font.TrueTypeFont;
import com.atr.jme.font.asset.TrueTypeKey;
import com.atr.jme.font.asset.TrueTypeKeyBMP;
import com.atr.jme.font.asset.TrueTypeLoader;
import com.atr.jme.font.shape.TrueTypeContainer;
import com.atr.jme.font.shape.TrueTypeNode;
import com.atr.jme.font.util.StringContainer;
import com.atr.jme.font.util.Style;
import com.jme3.app.SimpleApplication;
import com.jme3.input.KeyInput;
import com.jme3.input.controls.ActionListener;
import com.jme3.input.controls.KeyTrigger;
import com.jme3.material.Material;
import com.jme3.math.ColorRGBA;
import com.jme3.scene.Geometry;
import com.jme3.scene.shape.Quad;
import com.jme3.texture.Texture2D;

This file has been truncated. show original

How about just create a maxResolution texture, and copy BufferedImage to Image with ImageRaster ?

I’m trying to keep the Texture2D and reset Image.

github.com

jmecn/jME-TTF/blob/dev/src/main/java/com/atr/jme/font/TrueTypeAWT.java#L209


        
        g.translate(-x, -y);
    }
    if (atlas != null) {
        atlas.getImage().dispose();
        if (!NativeObjectManager.UNSAFE) {
            for (ByteBuffer buf : atlas.getImage().getData()) {
                BufferUtils.destroyDirectBuffer(buf);
            }
        }
        atlas.setImage(new AWTLoader().load(tmpImg, false));
    } else {
        atlas = new Texture2D(new AWTLoader().load(tmpImg, false));
    }
    g.dispose();
    
    atlasResized = false;
}
@Override

Also provide an fixedResolution option in TrueTypeKeyBMP.

github.com

jmecn/jME-TTF/blob/dev/src/main/java/com/atr/jme/font/asset/TrueTypeKeyBMP.java#L218


 * to use strong references in the cache preventing the
 * garbage collector from reclaiming this font.
 * @param preload A set of characters to initialize the font with.
 * @param maxAtlasResolution The maximum resolution of the texture atlas.
 */
public TrueTypeKeyBMP(String name, Style style, int pointSize, int outline, int dpi,
    boolean useWeakCache, String preload, int maxAtlasResolution, boolean fixedResolution) {
    super(name, style, pointSize, dpi, useWeakCache, preload);
    this.outline = outline;
    this.maxAtlasResolution = maxAtlasResolution;
    this.fixedResolution = fixedResolution;
}
public void setOutline(int outline) {
    this.outline = outline;
}
/**
 * 
 * @return The size of the outline around bitmap text.
 */

And use it to change behavior of TrueTypeBMP#resizeAtlas()

github.com

jmecn/jME-TTF/blob/dev/src/main/java/com/atr/jme/font/TrueTypeBMP.java#L282


/**
 * For internal use only. Doesn't actually resize the texture atlas itself.
 * This method is used to recalculate what the texture atlas' size should be
 * when it is eventually resized.
 * 
 * @see TrueTypeAWT#createGlyphs(java.util.List) 
 * @see TrueTypeSfntly#createGlyphs(java.util.List)
 */
protected void resizeAtlas() {
    if (fixedResolution) {
        atlasWidth = this.maxTexRes;
        atlasHeight = this.maxTexRes;
    } else {
        atlasWidth += (atlasWidth + resizeWidth > maxTexRes) ? 0 : resizeWidth;
        atlasHeight += (atlasHeight + charHeight > maxTexRes) ? 0 : charHeight;
    }
    
    int numNewLines = (int)FastMath.floor((float)atlasHeight / charHeight) - atlasLines.size();
    for (int i = 0; i < numNewLines; i++) {
        atlasLines.add(new AtlasLine());

This can solve my problem.

Tryder · August 27, 2019, 3:50pm

Changes to the atlas texture can be handled through an AtlasListener. The notes section on the jME-TTF documentation page discuss this, jttf_notes

Example:

AtlasListener atlasListener = new AtlasListener() {
    @Override
    public void mod(AssetManager assetManager, int oldWidth, int oldHeight,
            int newWidth, int newHeight, TrueTypeBMP font) {
        //The atlas texture has been modified, update the texture on your text materials to the new atlas texture here.

        if (oldWidth != newWidth || oldHeight != newHeight)
            //Update your geometries here as the texture has been resized and the UV coordinates have changed. For example TrueTypeContainer.updateGeometry(); or TrueTypeNode.updateGeometry();
    }
}

((TrueTypeBMP)ttf).addAtlasListener(atlasListener);

But if you prefer a max resolution feature you’re welcomed to make a pull request.

@Ali_RS , jME-TTF does not support support right to left directionality.

sgold · August 27, 2019, 4:06pm

Adam:

I’m glad you’re still around to answer questions and give advice.
Attempting to browse the documentation webpage gives me a 404 error.
I use JME-TTF in my Maud application, so I’d grateful if you’d upload the latest release to bintray.com

Tryder · August 27, 2019, 5:45pm

Yeah, turns out I’m not so easy to get rid of . I fixed the typo in the link, it’s jttf. I’ll be starting my winter migration here soon and I’m trying to work up an updated version of my TEdit Android app with some requested new features before I hit the road, but I should be able to squeeze out an updated jME-TTF to bintray in a couple of days.

sgold · August 27, 2019, 8:04pm

Thanks for the corrected URL. Safe travels!

Tryder · August 27, 2019, 9:49pm

Thanks for the well wishes. After some dark clouds rolled in I checked the forecast, looks like a solid week or so of rain so I’m going to have to change that couple of days estimate to an indeterminant amount of time.

yan · August 28, 2019, 2:05am

Hi, @Tryder

I have made a new pull request. Here is what I have done in this pr:

1. Make the project compatible to Maven and Gradle

Add build.gradle to the project.
Add pom.xml to the project
Move src to src/main/java

2. Add fixedResolution feature

3. Add some test cases with Ubuntu fonts

Please check my pr.

Tryder · September 8, 2019, 10:06pm

I haven’t forgotten about this by the way. It’s been too cloudy to bootup my computer and that trend looks to continue for several more days then I’ll spend the next week packing up our gear, loading up the bikes and hittin’ the road for winter migration. My girlfriend likes to leave on September 22nd because it’s the same day Bilbo and Frodo left on their journeys in The Hobbit and Lord of the Rings . Recently picked up some sweet new shades for the trip to boot. Anyway we’re only going about a hundred miles before taking a month long layover so I’ll probably get a bunch of stuff done then.

Tryder · September 12, 2019, 6:20pm

groupId: com.atr
artifactId: jme-ttf
version: 2.2.1

sgold · September 13, 2019, 3:43am

There’s an issue with the POM at JCenter:

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileJava'.
> Could not resolve all files for configuration ':compileClasspath'.
   > Could not resolve com.atr:jme-ttf:2.2.1.
     Required by:
         project :
      > Could not resolve com.atr:jme-ttf:2.2.1.
         > Could not parse POM https://jcenter.bintray.com/com/atr/jme-ttf/2.2.1/jme-ttf-2.2.1.pom
            > Missing required attribute: dependency groupId

Looks like the error is in the final dependency:

    <dependency>
      <artifactId>android</artifactId>
      <scope>compile</scope>
    </dependency>

Tryder · September 13, 2019, 5:15pm

Should be good to go now. I built the pom file from the new gradle build script provided by Yan and the android dependency in the new build script isn’t actually available on jcenter, but was included in the pom file anyway so I removed it.

sgold · September 14, 2019, 9:45pm

Confirmed good. Thank you!

Tryder · September 15, 2022, 3:05pm

I received a PM asking for access to my Lemur Dynamo package and figured I’d post an update here.

Many of the files I share on my website and elsewhere are stored on Google Drive using Share Links. Earlier this year I noticed that virtually all of those links stopped working. Well they worked, but instead of linking directly to the shared file on Google Drive people were instead taken to a Google Account login page where they had to login and request access to the files. Apparently, for some unknown reason, the access to all my linked files had been changed to private.

I don’t know when this happened as all the requests for access to various files were coming into my Google Mail account which I no longer use and I don’t typically go about checking the links I have on my website to make sure they still work because, you know, why wouldn’t they?

Anyway I recreated the share links and everything seems to be working last I checked, but now @icyboxs asks me, via PM here, for access to my Lemur Dynamo package stored on Google Drive. So I went and recreated the link which is now https://drive.google.com/file/d/0B6BscJ4Cq-K7ZUlJakxKZFRiTGs/view?usp=sharing&resourcekey=0-6SW8w8yRubusi3X2iICUNg, but it still doesn’t work. The link takes me to a page saying that the file is in violation of Google’s ToS, although there’s nothing indicating this when I login and look at the file in my Google Drive account.

I’ll post an updated link here when I find somewhere else to upload the file.

P.S. My website is now hosted at https://www.inventati.org/1337gallery. The weebly address still works, but I don’t update the weebly site very often as it’s a bit of a pain.

Tryder · September 16, 2022, 3:32pm

Lemur dynamo on Dropbox: Dropbox - LemurDynamo-v1.02.zip - Simplify your life

Also updated the links on my website which pointed to an older version of jme-ttf: Dropbox - jME-TTF-2.2.2.zip - Simplify your life